CN113719580B - Method for improving service performance of transverse backstop - Google Patents
Method for improving service performance of transverse backstop Download PDFInfo
- Publication number
- CN113719580B CN113719580B CN202110909347.8A CN202110909347A CN113719580B CN 113719580 B CN113719580 B CN 113719580B CN 202110909347 A CN202110909347 A CN 202110909347A CN 113719580 B CN113719580 B CN 113719580B
- Authority
- CN
- China
- Prior art keywords
- rubber
- stopper
- stop
- transverse
- bottom plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
- F16F15/08—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with rubber springs ; with springs made of rubber and metal
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61F—RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES; RAIL VEHICLES FOR USE ON TRACKS OF DIFFERENT WIDTH; PREVENTING DERAILING OF RAIL VEHICLES; WHEEL GUARDS, OBSTRUCTION REMOVERS OR THE LIKE FOR RAIL VEHICLES
- B61F5/00—Constructional details of bogies; Connections between bogies and vehicle underframes; Arrangements or devices for adjusting or allowing self-adjustment of wheel axles or bogies when rounding curves
- B61F5/02—Arrangements permitting limited transverse relative movements between vehicle underframe or bolster and bogie; Connections between underframes and bogies
- B61F5/22—Guiding of the vehicle underframes with respect to the bogies
- B61F5/24—Means for damping or minimising the canting, skewing, pitching, or plunging movements of the underframes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F1/00—Springs
- F16F1/36—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers
- F16F1/371—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers characterised by inserts or auxiliary extension or exterior elements, e.g. for rigidification
- F16F1/3713—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers characterised by inserts or auxiliary extension or exterior elements, e.g. for rigidification with external elements passively influencing spring stiffness, e.g. rings or hoops
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F1/00—Springs
- F16F1/36—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers
- F16F1/373—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers characterised by having a particular shape
- F16F1/3732—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers characterised by having a particular shape having an annular or the like shape, e.g. grommet-type resilient mountings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F2224/00—Materials; Material properties
- F16F2224/02—Materials; Material properties solids
- F16F2224/025—Elastomers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F2228/00—Functional characteristics, e.g. variability, frequency-dependence
- F16F2228/06—Stiffness
- F16F2228/066—Variable stiffness
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F2230/00—Purpose; Design features
- F16F2230/0023—Purpose; Design features protective
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The invention relates to the technical field of bearing and damping of rail vehicles, in particular to a method for improving the service performance of a transverse stop, which comprises a rubber stop, a rigid stop and a bottom plate, wherein the bottom plate is provided with a mounting hole positioned at the side part of the rubber stop, the transverse stop is fixedly connected with a transverse stop mounting seat at the mounting hole through a mounting bolt, the outer peripheral surface of the rubber stop is positioned at the inner side of the mounting hole and is provided with a lacking surface for preventing the rubber from interfering with the mounting bolt during deformation, the distance between the rubber stop and the mounting hole is increased through the lacking surface, so that the deformation volume space during rubber deformation is increased, and the rubber stop is prevented from bulging outwards due to deformation and contacting, extruding and rubbing with the mounting bolt due to interference.
Description
Technical Field
The invention relates to the technical field of bearing and damping of railway vehicles, in particular to a method for improving the service performance of a transverse stop.
Background
The transverse stopper is a commonly used rubber-metal composite vibration damping limiting element, is widely applied to various vibration damping limiting places, and is very common in the bogie of a railway locomotive vehicle. At present, the main function of the transverse stops applied in rail rolling stock is to provide the rolling stock with a shock-absorbing function; the variable rigidity requirement is met under different bearing loads; and has a rigid stop function under special working conditions.
In the prior art, the following patents relate to the design of transverse stops:
1. for example, the patent number is '201910806560.9', the patent name is 'a nonlinear variable-stiffness compound rubber stopping method and compound rubber stopping', the nonlinear variable-stiffness compound rubber stopping method and compound rubber stopping are disclosed, according to the transverse limiting requirement of a locomotive vehicle, a compound stopping formed by combining a lug-bearing top plate made of high polymer material and a rubber stopping is adopted, transverse limiting is provided for the locomotive through deformation of the rubber stopping under small deformation, and along with increase of load, rubber is slowly contacted with a tool at the top to present nonlinear change, and the rigidity also presents weak nonlinear change; after large deformation, the convex part on the top plate made of the high polymer material is contacted with a lower tool to realize a rigid stop function, and the convex part of the top plate is transversely contacted with rubber to also play a transverse limiting role. This patent is injectd the horizontal spacing variable rigidity of rolling stock through roof lug and rubber backstop cooperation, has that backstop rigidity adjustable in earlier stage, and the later stage adopts macromolecular material to inlay the method that provides relative hardness at product inside as the rigidity backstop, realizes that the comprehensive properties of backstop improves.
However, the lateral stop in this patent still has the following problems, as shown in fig. 1:
1) When the rubber stopper 2 bears a large load, the rubber stopper 2 can deform to enable the rubber to bulge towards the periphery, the larger the load borne by the rubber stopper 2 is, the larger the deformation of the rubber is, the more serious the rubber bulges towards the periphery, and when the deformation of the rubber reaches a certain position, the rubber part bulged out in the rubber stopper 2 is easily in repeated contact, extrusion and friction with adjacent iron pieces, and is particularly easy to contact, extrude and rub with mounting bolts beside the rubber part, so that the service life and the vibration damping performance of a product can be greatly reduced.
2) In this patent the rigid stop 3 is located above the base plate 4 and is normally not in contact with the base plate 4; the rigid stop 3 is positioned above the bottom plate 4, so that the process difficulty of product production is increased, and the material cost and the design cost are increased; in addition, the transverse stop has poor universality, and different rigid stops are inconvenient to arrange or replace according to the limit distance requirements of different products.
3) In the patent, the rubber free surface 22 at the opening at the middle part of the rubber stopper 2 is a single-section type straight surface parallel to the vertical middle axis L1 of the transverse stopper, and when the rubber stopper 2 bears a large load, the rubber free surface 22 of the single-section type straight surface is easily wrinkled and broken due to the overlarge load; and the joint of the rubber free surface 22 and the rubber stopper 2 is accumulated, folded and broken, so that the service life of the product is shortened.
2. The patent number is '201820326785.5', the patent name is 'a transverse stopping structure and a railway vehicle bogie provided with the transverse stopping structure', the transverse stopping structure and the railway vehicle bogie provided with the transverse stopping structure are disclosed, the transverse stopping structure comprises a bottom plate and a rubber stopping part vulcanized on the bottom plate, at least one group of rigid stopping parts are further arranged on the bottom plate, the height of the rubber stopping part is larger than that of the rigid stopping part, a first gap is reserved between the rigid stopping part and the rubber stopping part, and the first gap ensures that a second gap is reserved between the rubber stopping part and the rigid stopping part when the rubber stopping part is compressed to the maximum compression amount. The utility model discloses optimized the structure of horizontal backstop, with rubber backstop and rigidity backstop integration, realized the integral design of rubber backstop and rigidity backstop, not only simple structure has satisfied vehicle lightweight's designing requirement moreover, the cost is reduced, but also effective control horizontal backstop decrement, for satisfying big axle load, little curve requirement, it is spacing to pass through or realize the rigidity under the strong wind condition at the vehicle minor curve, has improved vehicle lateral stability and the comfort level of taking.
Although this patent places a rigid stop on the base plate, it still has the following problems: as shown in fig. 2, in this patent, the rubber stopper 2 is located at the upper end of the middle of the bottom plate 4, the rigid stoppers 3 are located at the upper end of the bottom plate 4 and at both sides of the rubber stopper 2, and when a product is subjected to a large load, the rubber stopper 2 is pressed and deformed to bulge out towards the peripheral side, and not only can be in contact with, extruded and rubbed by the mounting bolts in the mounting holes 5 at the side part of the product, but also can be in contact with, extruded and rubbed by the rubber stopper 2, thereby greatly reducing the service performance and the service life of the product.
Disclosure of Invention
The invention aims to provide a method for improving the service performance of a transverse stopper, which is characterized in that a gap surface for preventing mutual interference with a mounting bolt during rubber deformation is arranged at the position, on the outer peripheral surface of the rubber stopper, of the inner side of the mounting hole, the distance between the rubber stopper and the mounting hole is increased, so that the deformation volume space during rubber deformation is increased, and the rubber stopper is prevented from bulging outwards due to deformation and being in interference with the mounting bolt to contact, extrude and rub.
In order to achieve the purpose, the invention provides the following technical scheme: the method for improving the service performance of the transverse backstop comprises the rubber backstop, the rigid backstop and a bottom plate, a mounting hole located on the side portion of the rubber backstop is formed in the bottom plate, the transverse backstop is fixedly connected with a transverse backstop mounting seat in the mounting hole through a mounting bolt, a lacking surface which prevents mutual interference between the rubber backstop and the mounting bolt when the rubber backstop is deformed is arranged at the inner side of the mounting hole on the outer peripheral surface of the rubber backstop, the distance between the rubber backstop and the mounting hole is increased through the lacking surface, so that the deformation volume space when the rubber is deformed is increased, and the rubber backstop is prevented from being contacted, extruded and rubbed due to the fact that the rubber backstop is deformed and bulges outwards to interfere with the mounting bolt.
Preferably, two notch surfaces located on the inner side of the mounting hole are uniformly arranged on the outer peripheral surface of the rubber stopper along the direction M by taking the vertical middle axis L1 of the transverse stopper as a reference, and the main arc surface of the rubber stopper in the direction N perpendicular to the direction M is transited to the notch surfaces through an arc.
Preferably, the lacking surface is set to be a concave arc surface which is concave towards the vertical central axis L1 of the transverse stopping piece, and the concave arc surface and the mounting bolt are oppositely arranged and are arranged in the middle of the rubber stopping piece in the N direction.
Preferably, set up the concave cambered surface into the circular arc concave cambered surface with the mounting hole is concentric, through the adjustable rubber backstop of the radius R of adjustment concave cambered surface and the distance between the mounting hole to this deformation requirement that adapts to rubber backstop under the different work condition.
Preferably, the lacking surface is set to be a straight tangent plane perpendicular to the bottom plate, and the deformation requirement of the rubber stop under different working conditions is met by adjusting the distance between the straight tangent plane and the mounting hole.
Preferably, the rubber stopper is arranged at the upper end of the bottom plate, a rigid stopper which forms an integral component with the bottom plate is arranged between the rubber stopper and the bottom plate, and the rigid stopper is arranged in the middle of the bottom plate and the rubber stopper and extends upwards to an opening at the upper part of the rubber stopper; the outer side surface of the stop head of the rigid stop is set to be a straight surface or a conical surface inclined from the bottom plate to a vertical middle axis L1 of the transverse stop.
Preferably, the rubber free surface of the rubber stopper at the opening is set to be more than two sections of multi-section type profile structures inclined towards the outer side of the rubber stopper, the multi-section type profile structures form a plurality of inflection points P, the variable rigidity requirement of the rubber stopper is met through the rubber free surface formed by the multi-section type profile structures, and the rubber free surface can be prevented from being wrinkled and deformed when the rubber stopper bears load.
Preferably, the rubber free surface body of the rubber stop consisting of a multi-section type surface structure is set to be a two-section type surface structure with a conical surface I connected with the upper end surface of the rubber stop and a conical surface II connected with the thin-layer rubber body on the top surface of the rigid stop; setting an angle B1 between the first conical surface and a vertical middle axis L1 of the transverse stopper to be larger than an angle B2 between the second conical surface and the vertical middle axis L1 of the transverse stopper; the height H4 of the first tapered surface is set smaller than the height H5 of the second tapered surface.
Preferably, a through groove for assembling the rigid stop is formed in the middle of the bottom plate, and a sunken positioning step is arranged at the upper end of the through groove; a positioning boss matched with the sunken positioning step is arranged on the rigid stop, and the rigid stop is assembled in the through groove of the bottom plate to form an integrated assembly with the bottom plate; the requirement of different limiting distances of the rigid stop in different application scenes can be met by adjusting the height H1 of the stop head part of the rigid stop protruding out of the upper end of the bottom plate.
Preferably, the outer side of the bottom plate is provided with a sunken mounting step for assembling the mounting hole, and the rubber volume of the rubber stopper in different application scenes can be adjusted by adjusting the height H2 of the sunken mounting step, so that the integral rigidity of the rubber stopper can be adjusted.
The invention has the beneficial effects that:
1. according to the invention, the outer peripheral surface of the rubber stopper is positioned at the inner side of the mounting hole, namely, the lacking surface is arranged in the M direction of the rubber stopper, so that the distance between the rubber stopper and the mounting hole can be increased, the deformation volume space of the rubber stopper during deformation is further increased, the rubber stopper is prevented from being contacted, extruded and rubbed with the mounting bolt due to outward bulging of the rubber stopper during deformation on the premise of ensuring the use rigidity and the limiting function of a product, and the service life of the transverse stopper is prolonged.
2. The rigid stopping block is arranged below, namely the rigid stopping block is arranged in the through groove in the middle of the bottom plate, so that the rigid stopping block and the bottom plate form an integrated assembly structure. Compared with the scheme that the rigid stop is arranged above the transverse stop, the rigid stop is arranged below the transverse stop, the structure and the design are simpler, and the process requirement is reduced.
3. The rubber free surface of the rubber stop at the opening is set to be more than two sections of multi-section type surface structures inclined towards the outer side of the rubber stop, and compared with the rubber free surface of a single-section straight surface structure, when the rubber stop bears load, the rubber free surface formed by the multi-section type surface structures can realize variable rigidity, and the rubber free surface wrinkles of the rubber stop at the opening can be prevented or reduced from deforming, so that the service life of the transverse stop is prolonged.
4. A sunken positioning step is arranged at the upper end of the through groove of the bottom plate; and a positioning boss matched with the sunken positioning step is arranged on the rigid stop, and the rigid stop is assembled in the through groove of the bottom plate to form an integrated assembly with the bottom plate. This scheme is less than the used material of the mode that adopts whole material processing, and design cost is lower, and the commonality of bottom plate is high in the integral type subassembly simultaneously, to the product of different rigidity backstop height requirements, only need adjust the height H1 of rigidity backstop protrusion in the backstop head of bottom plate upper end, can satisfy the different spacing distance's of rigidity backstop requirement in the different application scenes, realizes the different spacing distance's of product requirement under the different application occasion.
5. The sunken mounting steps used for assembling the mounting holes are arranged on the outer side of the bottom plate, and the rubber volume of the rubber stopper in different application scenes can be met by adjusting the height H2 of the sunken mounting steps, so that the integral rigidity of the transverse stopper can be adjusted.
6. The rubber volume of the rubber stopper can be adjusted and the rigidity of the rubber stopper can be adjusted by adjusting the profile structure of the rigid stopper protruding out of the outer side surface of the stopper head at the upper end of the bottom plate; meanwhile, the bonding area of rubber and the rigid stop can be increased by adjusting the profile structure of the outer side surface of the stop head, the rubber stop is prevented from falling off, and the service life of the transverse stop is prolonged.
Drawings
Fig. 1 is a schematic structural diagram of a comparison document i in the background art.
Fig. 2 is a schematic structural diagram of a second comparison document in the background art.
FIG. 3 is an overall assembly view of the lateral stop according to one embodiment.
Fig. 4 is a schematic perspective view of a lateral stop according to a first embodiment.
Fig. 5 is a top view of fig. 4.
Fig. 6 isbase:Sub>A sectional view taken along the linebase:Sub>A-base:Sub>A in fig. 5.
FIG. 7 is a schematic view of a bottom plate and a rigid stopper according to an embodiment.
Fig. 8 is a schematic structural view of a base plate and a rigid stopper in the second embodiment.
Fig. 9 is a schematic structural view of a bottom plate and a rigid stopper in the third embodiment.
Fig. 10 is a schematic perspective view of a lateral stopper according to a fourth embodiment.
Fig. 11 is a top view of fig. 10.
The reference numerals include: 1. a transverse stop; 2. a rubber stopper; 3. a rigid stop; 4. a base plate; 5. mounting holes; 6. a concave arc surface; 7. a main arc surface; 8. a first arc; 9. an opening; 10. a top surface; 11. a thin layer rubber body; 12. arc two; 13. a first conical surface; 14. a second conical surface; 15. the upper end surface of the rubber stopper; 16. the outer side surface of the stop head part; 17. a sunken positioning step; 18. positioning the boss; 19. a stopper head; 20. arc three; 21. a step is installed in a sinking mode; 22. a rubber free surface; 23. a central traction system; 24. the upper end surface of the bottom plate; 25. positioning the waist; 26. installing a bolt; 27. cutting into straight section.
Detailed description of the preferred embodiments
The invention is described in further detail below with reference to fig. 3-11.
Example one
As shown in fig. 3-7, the method for improving the usability of the transverse stopper includes that the transverse stopper 1 includes a rubber stopper 2, a rigid stopper 3 and a bottom plate 4, a mounting hole 5 located at the side of the rubber stopper 2 is formed in the bottom plate 4, the transverse stopper 1 is fixedly connected with a mounting seat of the transverse stopper 1 at the mounting hole 5 through a mounting bolt 26, a notch for preventing mutual interference with the mounting bolt 26 when the rubber deforms is arranged at the inner side of the mounting hole 5 on the outer peripheral surface of the rubber stopper 2, the distance between the rubber stopper 2 and the mounting hole 5 is increased through the notch, so that the deformation volume space when the rubber deforms is increased, and on the premise of ensuring the use rigidity and the limit function of a product, the rubber stopper 2 is prevented from bulging outwards due to deformation and interfering with the mounting bolt 26 to contact, extrusion and friction.
As shown in fig. 3, the transverse stopper 1 in this embodiment is used in a central traction system 23 of a bogie, and is used for meeting the requirement of variable stiffness under different load bearing loads, damping the vehicle, and having a rigid stopper function under special conditions. As shown in fig. 4 and 5, be located the inboard department of mounting hole 5 at 2 outer peripheral faces of rubber backstop and set up scarce face, lack face in this embodiment is the axial concave cambered surface 6 of the perpendicular axis L1 indent of horizontal backstop 1, set up concave cambered surface 6 and mounting bolt 26 relatively and locate the middle part of rubber backstop 2 in the N direction, can increase the distance between rubber backstop 2 and the mounting hole 5, and then increase the deformation volume space of the rubber of rubber backstop 2 when warping, avoid rubber backstop 2 because warp toward outer bulge and with the mounting bolt 26 contact in the mounting hole 5, extrusion and friction, improve the life of horizontal backstop 1.
As shown in fig. 5, the concave arc surface 6 is set to be an arc concave arc surface 6 concentric with the mounting hole 5, and the distance between the rubber stopper 2 and the mounting hole 5 can be adjusted by adjusting the radius R of the concave arc surface 6, so as to meet the deformation requirement of the rubber stopper 2 under different working conditions.
As shown in fig. 5, two concave arc surfaces 6 located inside the mounting hole 5 are uniformly arranged on the outer peripheral surface of the rubber stopper 2 along the M direction with the vertical middle axis L1 of the transverse stopper 1 as a reference, a main arc surface 7 in the N direction perpendicular to the M direction of the rubber stopper 2 is transited to the concave arc surfaces 6 through a first arc 8, and the radius r of the first arc 8 is set to be 3mm-8mm. The rigidity of the rubber stopper 2 can be improved by transiting the main arc surface 7 and the concave arc surface 6 through the arc I8, and the rubber is prevented from being broken at the joint of the main arc surface 7 and the concave arc surface 6 when the rubber stopper 2 bears load; the radius r of the first arc 8 is set to be 3mm-8mm, if the radius r of the first arc 8 is set too small, for example, less than 3mm, the rubber at the position of the first arc 8 is easy to break and deform, and if the radius r of the first arc 8 is set too large, for example, greater than 8mm, the first arc 8 bulges outwards more, and when the rubber stopper 2 is loaded, the first arc 8 may contact with the mounting bolt 26 due to bulging and interfere with the mounting bolt 26. In the present embodiment, the radius r of the first arc 8 is preferably set to 5mm.
As shown in fig. 4 and 6, the rubber stopper 2 is disposed at the upper end of the bottom plate 4, the rigid stopper 3 which forms an integral assembly with the bottom plate 4 is disposed between the rubber stopper 2 and the bottom plate 4, the rigid stopper 3 is disposed at the middle of the bottom plate 4 and the rubber stopper 2 and extends upward to the opening 9 at the upper portion of the rubber stopper 2, and the stopper head outer side surface 16 of the rigid stopper 3 is disposed as a straight surface. Compared with the scheme that the rigid stop dog 3 is arranged above the transverse stop dog 1, the rigid stop dog 3 arranged below the transverse stop dog is simpler in structure and design, and the process requirement is reduced.
As shown in fig. 6, the rubber free surface 22 of the rubber stopper 2 at the opening 9 is set to be more than two sections of multi-section type surface structures inclined towards the outer side of the rubber stopper 2, the multi-section type surface structures form a plurality of inflection points P, the variable rigidity requirement of the rubber stopper 2 is met through the rubber free surface 22 formed by the multi-section type surface structures, and the wrinkle deformation of the rubber free surface 22 when the rubber stopper 2 bears load can be avoided. Compared with the rubber free surface 22 with a single-section straight surface structure, when the rubber stopper 2 bears load, the rubber free surfaces 22 with more than two sections of conical surface structures can realize variable rigidity and gradually deform along the conical surfaces, so that the wrinkle deformation of the rubber free surfaces 22 at the opening 9 of the rubber stopper 2 can be avoided or reduced, and the service life of the transverse stopper 1 is prolonged.
As shown in fig. 6, the top surface 10 of the rigid stopper 3 at the opening 9 is arranged to be parallel to the straight surface of the upper end surface 15 of the rubber stopper, and a thin layer of rubber 11 is vulcanized on the top surface 10 of the rigid stopper 3 to protect the rigid stopper 3; the conical surface and the thin rubber body 11 are transited through a second arc 12. The thin-layer rubber body 11 can protect the rigid stop 3, so that the rigid stop 3 is prevented from being corroded by water or dust, and the service life is prolonged; conical surface and thin layer rubber body 11 pass through circular arc two 12 transition for rubber backstop 2 is when bearing load, and rubber is from conical surface to thin layer rubber body 11 department of being close to gradually at conical surface and the junction of thin layer rubber body 11, can prevent that the rubber between conical surface and the thin layer rubber body 11 from piling up when bearing load and breaking a discount.
As shown in fig. 4 and 6, the rubber free surface 22 of the rubber stopper 2, which is formed by a multi-section profile structure, is specifically configured as a two-section conical surface structure, which is a first conical surface 13 connected to the upper end surface 15 of the rubber stopper and a second conical surface 14 connected to the thin-layer rubber body 11 on the top surface 10 of the rigid stopper 3; the angle B1 between the first conical surface 13 and the vertical middle axis L1 of the transverse stopper 1 is set to be larger than the angle B2 between the second conical surface 14 and the vertical middle axis L1 of the transverse stopper 1, so that the opening 9 of the rubber stopper 2 is gradually increased from the rigid stopper 3 to the upper opening, and compared with a single straight surface structure or a structure with gradually reduced openings, the rubber stopper 2 in the scheme is not easy to accumulate and fold at the rubber free surface 22 at the opening 9 when being loaded; the height H4 of the first conical surface 13 is set to be smaller than the height H5 of the second conical surface 14, so that the height of the second conical surface 14 with larger rubber volume is larger, the rigidity of the rubber stopper 2 can be increased, and the service life is prolonged.
As shown in fig. 7, a through groove for assembling the rigid stopper 3 is formed in the middle of the bottom plate 4, and a sunken positioning step 17 is arranged at the upper end of the through groove; and a positioning boss 18 matched with the sunken positioning step 17 is arranged on the rigid stopper 3, and the rigid stopper 3 is assembled in the through groove of the bottom plate 4 to form an integrated component with the bottom plate 4. The rigid stop 3 may be assembled with the base plate 4 as a one-piece assembly by interference press-fitting or welding, which is preferred in this embodiment. Under the condition of ensuring that the mounting height H3 of the mounting bolt 26 is not changed, the volume of rubber in the rubber stopper 2 can be adjusted by adjusting the height H2 of the sunken positioning step 17, so that the adjustment of the integral rigidity of the transverse stopper 1 is realized; set rigid backstop 3 and bottom plate 4 into integral type subassembly, it is still less than the used material of mode that adopts whole material processing, and design cost is lower, and bottom plate 4's commonality is high in the integral type subassembly simultaneously, to the product of 3 high requirements of different rigid backstops, only need adjust rigid backstop 3 protrusion in the high H1 of backstop head 19 of bottom plate 4 upper end, can satisfy the requirement of the different spacing distance of rigid backstop 3 in the different application scenes.
As shown in fig. 7, the requirements of different limiting distances of the rigid stopper 3 in different application scenes can be met by adjusting the height H1 of the stopper head 19 of the rigid stopper 3 protruding out of the upper end of the base plate 4; the outer circumferential surface of the stop head 19 is in transition with the upper end surface 24 of the base through a circular arc three 20. The limiting distance in different scenes can be realized by adjusting the height H1 of the stopping head 19, and the applicability is strong.
As shown in fig. 7, a sunken installation step 21 for assembling the installation hole 5 is arranged on the outer side of the bottom plate 4, and the adjustment of the rubber volume of the rubber stopper 2 in different application scenes can be met by adjusting the height H2 of the sunken installation step 21, and the adjustment of the overall rigidity of the rubber stopper 2 is realized.
Example two
As shown in fig. 8, the present embodiment is different from the first embodiment in that the stopper head outer side surface 16 is formed as a tapered surface inclined from the bottom plate 4 toward the vertical central axis L1 of the transverse stopper 1, so that the volume of the rubber in the rubber stopper 2 can be increased, and the rigidity of the transverse stopper 1 can be increased.
EXAMPLE III
As shown in fig. 9, the present embodiment is different from the second embodiment in that a positioning waist portion 25 recessed toward the vertical central axis L1 of the transverse stopper 1 is disposed on the stopper head outer side surface 16, and the rubber stopper 2 vulcanizes rubber at the positioning waist portion 25, so that on one hand, the positioning waist portion 25 can increase the rubber bonding area between the rubber stopper 2 and the rigid stopper 3, so that the connection between the rubber stopper 2 and the rigid stopper 3 is more stable, and the service life of the transverse stopper 1 is increased; on the other hand, the positioning waist part 25 is arranged in the same M direction of the rubber stopper 2 and the concave cambered surface 6, so that the rigidity of the concave cambered surface 6 can be reinforced, and the overall rigidity of the rubber stopper 2 is improved.
Example four
As shown in fig. 10 to 11, the difference between this embodiment and the third embodiment is that the lacking surface is set to be perpendicular to the straight cut surface 27 of the bottom plate 4, the process of this solution is simple, and the deformation requirement of the rubber stopper 2 under different working conditions can be adapted by adjusting the distance between the straight cut surface 27 and the mounting hole 5.
The above examples are only illustrative and not restrictive, and those skilled in the art can make modifications to the embodiments of the present invention as required without any inventive contribution thereto after reading the present specification, but all such modifications are intended to be protected by the following claims.
Claims (8)
1. The method for improving the service performance of the transverse backstop comprises the steps that the transverse backstop (1) comprises a rubber backstop (2), a rigid backstop (3) and a bottom plate (4), a mounting hole (5) located on the side portion of the rubber backstop (2) is formed in the bottom plate (4), the transverse backstop (1) is fixedly connected with a mounting seat of the transverse backstop (1) at the mounting hole (5) through a mounting bolt (26), and the method is characterized in that a lacking surface which prevents mutual interference between the rubber backstop and the mounting bolt (26) when the rubber is deformed is arranged at the inner side of the mounting hole (5) on the outer peripheral surface of the rubber backstop (2), the distance between the rubber backstop (2) and the mounting hole (5) is increased through the lacking surface, so that the deformation volume space when the rubber is deformed is increased, and the rubber backstop (2) is prevented from bulging outwards due to being deformed and interfering with the mounting bolt (26) to contact, extrusion and friction; arranging the rubber stopper (2) at the upper end of the bottom plate (4), and arranging a rigid stopper (3) which forms an integrated component with the bottom plate (4) between the rubber stopper (2) and the bottom plate (4); a through groove for assembling the rigid stop (3) is formed in the middle of the bottom plate (4), and a sunken positioning step (17) is arranged at the upper end of the through groove; a positioning boss (18) matched and assembled with the sunken positioning step (17) is arranged on the rigid stop (3), and the rigid stop (3) is assembled in the through groove of the bottom plate (4) to form an integrated assembly with the bottom plate (4); the rubber free surface (22) of the rubber stop (2) at the opening (9) is set to be more than two sections of multi-section type surface structures which incline towards the outer side of the rubber stop (2), the multi-section type surface structures form a plurality of inflection points P, the variable rigidity requirement of the rubber stop (2) is met through the rubber free surface (22) formed by the multi-section type surface structures, and the wrinkle deformation of the rubber free surface (22) when the rubber stop (2) bears load can be avoided; the outer side of the bottom plate (4) is provided with a sunken installation step (21) for assembling the installation hole (5), and the rubber volume of the rubber stopper (2) in different application scenes can be adjusted by adjusting the height H2 of the sunken installation step (21), so that the integral rigidity of the rubber stopper (2) can be adjusted.
2. The method for improving the service performance of the transverse stopper as claimed in claim 1, wherein two notch surfaces located inside the mounting hole (5) are uniformly arranged on the outer peripheral surface of the rubber stopper (2) along the direction M with reference to a vertical middle axis L1 of the transverse stopper (1), and a main arc surface (7) in the direction N perpendicular to the direction M of the rubber stopper (2) is transited to the notch surfaces through an arc I (8).
3. The method for improving the service performance of the transverse stopper as claimed in claim 2, wherein the lacking surface is a concave arc surface (6) which is concave towards the vertical central axis L1 of the transverse stopper (1), and the concave arc surface (6) is arranged opposite to the mounting bolt (26) and is arranged in the middle of the rubber stopper (2) in the N direction.
4. The method for improving the service performance of the transverse stopper as claimed in claim 3, wherein the concave arc surface (6) is set to be a circular arc concave arc surface (6) concentric with the mounting hole (5), and the distance between the rubber stopper (2) and the mounting hole (5) can be adjusted by adjusting the radius R of the concave arc surface (6), so as to adapt to the deformation requirement of the rubber stopper (2) under different working conditions.
5. The method for improving the service performance of the transverse stopper as claimed in claim 2, wherein the lacking surface is arranged to be perpendicular to the straight tangent surface (27) of the bottom plate (4), and the deformation requirement of the rubber stopper (2) under different working conditions is met by adjusting the distance between the straight tangent surface (27) and the mounting hole (5).
6. The method for improving the service performance of the transverse stopper as claimed in any one of claims 1 to 5, wherein the rigid stopper (3) is arranged in the middle of the bottom plate (4) and the rubber stopper (2) and extends upwards to the opening (9) at the upper part of the rubber stopper (2); the outer side surface (16) of the stop head part of the rigid stop (3) is set to be a straight surface or a conical surface inclined from the bottom plate (4) to the vertical middle axis L1 of the transverse stop (1).
7. The method for improving the service performance of a lateral stop according to claim 6, characterized in that the free rubber surface (22) of the rubber stop (2) is formed by a multi-step profile structure, specifically, a two-step conical surface profile structure, which is a first conical surface (13) connected to the upper end surface (15) of the rubber stop and a second conical surface (14) connected to the thin rubber body (11) of the top surface (10) of the rigid stop (3); setting an angle B1 between the first conical surface (13) and a vertical central axis L1 of the transverse stopper (1) to be larger than an angle B2 between the second conical surface (14) and the vertical central axis L1 of the transverse stopper (1); the height H4 of the first tapered surface (13) is set to be smaller than the height H5 of the second tapered surface (14).
8. The method for improving the service performance of the lateral stopper as claimed in claim 7, wherein the height H1 of the stopper head (19) of the rigid stopper (3) protruding from the upper end of the bottom plate (4) is adjusted to meet the requirements of different limiting distances of the rigid stopper (3) in different application scenarios.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110909347.8A CN113719580B (en) | 2021-08-09 | 2021-08-09 | Method for improving service performance of transverse backstop |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110909347.8A CN113719580B (en) | 2021-08-09 | 2021-08-09 | Method for improving service performance of transverse backstop |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113719580A CN113719580A (en) | 2021-11-30 |
| CN113719580B true CN113719580B (en) | 2023-03-28 |
Family
ID=78675268
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110909347.8A Active CN113719580B (en) | 2021-08-09 | 2021-08-09 | Method for improving service performance of transverse backstop |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113719580B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201338619Y (en) * | 2008-12-29 | 2009-11-04 | 南车南京浦镇车辆有限公司 | Transverse stop dog for bogie |
| CN103244589A (en) * | 2013-05-29 | 2013-08-14 | 株洲时代新材料科技股份有限公司 | Method for controlling inflexion point position and upward trend of stopper stiffness and stopper |
| CN206427039U (en) * | 2016-12-29 | 2017-08-22 | 比亚迪股份有限公司 | Transverse stop device for sit-astride track train |
| CN110454532A (en) * | 2019-08-29 | 2019-11-15 | 株洲时代新材料科技股份有限公司 | A kind of nonlinear variable-stiffness compounded rubber backstop method and compounded rubber backstop |
| CN110469609A (en) * | 2019-08-29 | 2019-11-19 | 株洲时代新材料科技股份有限公司 | A kind of the compounded rubber metal stopper method and compounded rubber backstop of the hard backstop of band |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3932219B2 (en) * | 1997-10-31 | 2007-06-20 | カヤバ工業株式会社 | Front fork |
| JP5520990B2 (en) * | 2012-03-22 | 2014-06-11 | 東海ゴム工業株式会社 | Upper support for vehicle suspension |
| CN203702956U (en) * | 2014-03-11 | 2014-07-09 | 株洲时代新材料科技股份有限公司 | Integrated double-peak type variable-stiffness rubber stopper |
| CN106476835B (en) * | 2015-08-28 | 2018-10-19 | 株洲时代新材料科技股份有限公司 | A method of the vertical backstop with wearing plate and prevent steel spring be broken |
| CN106476838B (en) * | 2015-08-28 | 2018-09-07 | 株洲时代新材料科技股份有限公司 | A kind of method that normal contact prevents steel spring to be broken and vertical backstop |
| CN106476836B (en) * | 2015-08-28 | 2018-07-03 | 株洲时代新材料科技股份有限公司 | A kind of method that steel spring is prevented to be broken and the vertical backstop of concave shaped |
| CN107972741A (en) * | 2016-10-25 | 2018-05-01 | 上汽通用五菱汽车股份有限公司 | A kind of preceding damper upper support structure |
| CN210859636U (en) * | 2019-10-23 | 2020-06-26 | 北京航材百慕合力高分子材料有限公司 | Conical spring for hoisting equipment under vehicle |
-
2021
- 2021-08-09 CN CN202110909347.8A patent/CN113719580B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201338619Y (en) * | 2008-12-29 | 2009-11-04 | 南车南京浦镇车辆有限公司 | Transverse stop dog for bogie |
| CN103244589A (en) * | 2013-05-29 | 2013-08-14 | 株洲时代新材料科技股份有限公司 | Method for controlling inflexion point position and upward trend of stopper stiffness and stopper |
| CN206427039U (en) * | 2016-12-29 | 2017-08-22 | 比亚迪股份有限公司 | Transverse stop device for sit-astride track train |
| CN110454532A (en) * | 2019-08-29 | 2019-11-15 | 株洲时代新材料科技股份有限公司 | A kind of nonlinear variable-stiffness compounded rubber backstop method and compounded rubber backstop |
| CN110469609A (en) * | 2019-08-29 | 2019-11-19 | 株洲时代新材料科技股份有限公司 | A kind of the compounded rubber metal stopper method and compounded rubber backstop of the hard backstop of band |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113719580A (en) | 2021-11-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP3339132B1 (en) | Central traction device for straddling monorail train | |
| CA2957864C (en) | Isolated spring clamp group | |
| JP5596050B2 (en) | Suspension assembly tie plate and frame hanger | |
| AU2002308792B9 (en) | Pedestal Shear Pad | |
| DE102009014194A1 (en) | Chassis part, particularly suspension arm for motor vehicle, comprises base body, and multiple bearings for arrangement of chassis part at body of motor vehicle | |
| CN110617293A (en) | Variable-stiffness axle box spring vibration reduction method and spring | |
| CN106015419A (en) | Sawtooth-shaped rubber pad for railway vehicles and rigidity adjustment method thereof | |
| CN110285173A (en) | A kind of method and structure of volute spring stiffness tuning | |
| CN113719580B (en) | Method for improving service performance of transverse backstop | |
| CN214788821U (en) | Flexible connection rubber joint for rolling stock | |
| EP2806182A1 (en) | Rubber spring, rubber suspension system and truck | |
| CN107161167A (en) | Rubber blanket and its stiffness tuning method for series-connected helical spring | |
| CN210793571U (en) | Ship fender | |
| CN115158385B (en) | Method and structure for reducing deflection stiffness of laminated spring mechanism | |
| CN112298332A (en) | Adjusting bushing, steering column and vehicle | |
| CN220791877U (en) | Outer tube bushing with flange | |
| CN115929827A (en) | Motor spherical hinge with small-diameter shaft rigidity ratio | |
| CN211202702U (en) | Variable-stiffness axle box spring | |
| CN110816576B (en) | Method and device for improving fatigue life of elastic side bearing | |
| CN210139754U (en) | Novel anti-dislocation automobile plate spring | |
| CN115507143A (en) | Special-shaped rubber spring and rigidity adjusting method thereof | |
| CN210634359U (en) | Bush structure and vehicle | |
| CN113944071B (en) | Double-layer vibration damping fastener | |
| CN112706573A (en) | Bush and automotive suspension system | |
| CN115285159A (en) | Floor vibration damping structure and rail vehicle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |